Một lô hàng có 5 sản phẩm đạt chuaanrvaf 3 sản phẩm lỗi. chọn ngẫu nhiên từ lô hàng ra 3 sản phẩm. Gọi X là số sản phẩm đạt chuẩn có trong 3 sản phẩm lấy ra. a. Hãy lập bảng phân phối xác suất của X

b. Hãy lập bảng phân phối xác suất của Y= ( X-1 )

c. Tính xác suất p{1

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.

the answer to 1/4x+5/3x-4=2-1/12x is x=3

hope this if needed hmu